EP3181900A1 - Procédés et systèmes de surveillance en temps réel de l'état d'isolation d'enroulements de générateur éolien - Google Patents

Procédés et systèmes de surveillance en temps réel de l'état d'isolation d'enroulements de générateur éolien Download PDF

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Publication number
EP3181900A1
EP3181900A1 EP16002483.2A EP16002483A EP3181900A1 EP 3181900 A1 EP3181900 A1 EP 3181900A1 EP 16002483 A EP16002483 A EP 16002483A EP 3181900 A1 EP3181900 A1 EP 3181900A1
Authority
EP
European Patent Office
Prior art keywords
stator
generator
frequency
fundamental frequency
electrical network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16002483.2A
Other languages
German (de)
English (en)
Other versions
EP3181900B1 (fr
Inventor
Jose Luis Rodriguez Izal
Isaac Gude Rodriguez
Guillermo Sanchez Vitorica
Almudena Muñoz Babiano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Gamesa Renewable Energy Innovation and Technology SL
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Gamesa Innovation and Technology SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Gamesa Innovation and Technology SL filed Critical Gamesa Innovation and Technology SL
Publication of EP3181900A1 publication Critical patent/EP3181900A1/fr
Application granted granted Critical
Publication of EP3181900B1 publication Critical patent/EP3181900B1/fr
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
    • G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1209—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using acoustic measurements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/4445—Classification of defects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • This invention relates to wind turbines and more particularly to methods and systems for monitoring the insulating state of their generator windings.
  • the present invention is directed to the attention of these demands.
  • the invention provides a method for detecting faults in the insulation of a generator of a wind turbine coupled to an electrical network via a converter and provided with means for measuring electrical variables of the generator (voltage and current in rotor and stator) as well as their radial-horizontal and radial-vertical vibrations in the coupling side and in the opposite side to it.
  • the method comprises the following steps: a) capturing in real-time, during a predetermined time period (in situations where the generator is synchronized to the electrical network but is not yet couplet thereto as well as in situations where the generator is producing energy) the values of one or more generator electrical variables and/or the values of the generator radial-horizontal and radial-vertical vibrations in at least one of its two coupling sides; b) obtaining in real-time, the temporal evolution of the inverse components of said electrical variables at one or more predetermined frequencies and/or the temporal evolution of the values of said vibrations at one or more predetermined frequencies; c) identifying a possible generator insulation fault when the inverse component of at least one electrical variable and/or one of said vibrations at a predetermined frequency exceeds an absolute threshold or a temporal increase threshold pre-sets.
  • Embodiments of the method for different types of generator (doubly fed, permanent magnet and squirrel cage) in the mentioned coupling situations to the electrical network are envisaged and the relevant variables and predetermined frequencies for each of them are described.
  • the invention provides a system for implementing said method comprising a computer system connected to the data bus of the wind turbine for capturing the measures of the electrical variables (which can be provided by the converter or by a separate device thereof) and of the vibration variables provided by a measurement device connected to a set of sensors arranged on the generator.
  • the present invention provides methods and systems for detecting the state of the insulation of the windings of a wind turbine generator by means of a real-time monitoring of, on the one hand, electrical variables and, on the other hand, its vibration, thereby enabling performing preventive maintenance work to avoid catastrophic failures in the generator insulation.
  • the monitoring of electrical variables proposed by the invention involves three steps:
  • the monitoring of the vibration proposed by the invention involves three similar steps to those of the electrical variables:
  • Said monitoring will be performed in time periods corresponding to low wind situations in which the generator is synchronized to the electrical network but not coupled thereto and in energy production periods.
  • the objective is to verify the correct state of the insulation before coupling to the electrical network. This will prevent coupling the generator to the electrical network in case of significant loss of insulation and also minimizing the damages occurring in the generator in case of an outright short circuit. Damage or fatigue to other components will be also prevented as high currents or pairs of high short-circuits especially in double-fed generators are avoided. Checking the state of insulation in low wind situations is more effective as both transient events produced in the electrical network and unexpected wind gusts may cause erroneous measurements. Consequently, insulation faults can be detected in more incipient stages, because the lack of transient events allows refining the detection system.
  • the objective is to detect loss of insulation in operation.
  • the generator can be stopped and the condition of the insulation in the previous mode be checked.
  • the data bus 17 receives in real-time a data stream D1 of measurements of the mentioned electrical variables and a data stream D2 of measurements of the mentioned vibrations.
  • the data stream D2 of measurements of vibration is generated on a vibration measuring device 14 connected to a sensor assembly 12 arranged on the generator 11.
  • This assembly may comprise (see Figure 7 ) sensors in the positions indicated by arrows F1 and F3 for measuring the radial-vertical vibration and by arrows F2 and F4 for measuring the radial-horizontal vibration in, respectively, the coupling side of generator 11 and the side opposite.
  • the data stream D1 can be generated in a measuring device 16 separated from the converter 13 and provided with means for measuring the electrical variables of generator 11,
  • the software of the computer system 21 would obtain in real-time the temporal evolution of the inverse component of the mentioned electrical variables and of the mentioned vibrations at the indicated frequencies from data streams D1, D2. Furthermore, through the analysis of their temporal evolution, it would identify a possible failure of the insulation of generator 11 when the value of the inverse component of an electric variable and/or the value of one of the mentioned vibrations of generator 11 exceeds any of the pre-set thresholds. Finally, it would execute the foreseen appropriate alarm and message measures so that when a possible insulation failure is detected appropriate corrective actions can be taken.
  • the computer system 21 can be used for monitoring the insulation condition of the generator of various wind turbines by accessing their data buses.
  • the system of the invention is thus applicable to wind turbines having means for supplying in real-time values of the mentioned variables to a computer system 21.
  • the specific variables to be monitored comprise one or more of the following.
  • the permanent magnet generator is synchronized to the network but not coupled thereto only the values of electrical variables and vibration at a same rotation speed will be taken into account for the calculation, (i.e, the analysis will be carried out at iso-speed). In this case the generator does not inject active power to the network and pure reactive power is used for operating the generator.
  • the squirrel cage generator is synchronized to the network but not coupled thereto only the values of electrical variables and vibration at a same rotation speed will be taken into account for the calculation. (i.e. the analysis will be carried out at iso-speed). In this case the generator does not inject active power to the network and pure reactive power is used for operating the generator.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Energy (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Control Of Eletrric Generators (AREA)
  • Wind Motors (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
EP16002483.2A 2015-11-26 2016-11-23 Procédés et systèmes de surveillance en temps réel de l'état d'isolation d'enroulements de générateur éolien Active EP3181900B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201500845A ES2613902B1 (es) 2015-11-26 2015-11-26 Método y sistemas de monitorización en tiempo real del estado del aislamiento de los devanados de generadores eólicos

Publications (2)

Publication Number Publication Date
EP3181900A1 true EP3181900A1 (fr) 2017-06-21
EP3181900B1 EP3181900B1 (fr) 2020-10-21

Family

ID=57394313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16002483.2A Active EP3181900B1 (fr) 2015-11-26 2016-11-23 Procédés et systèmes de surveillance en temps réel de l'état d'isolation d'enroulements de générateur éolien

Country Status (7)

Country Link
US (1) US10473708B2 (fr)
EP (1) EP3181900B1 (fr)
CN (1) CN107037331B (fr)
BR (1) BR102016027752B1 (fr)
DK (1) DK3181900T3 (fr)
ES (2) ES2613902B1 (fr)
MX (1) MX2016015500A (fr)

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DK3454469T3 (da) * 2017-09-12 2022-03-21 Siemens Gamesa Renewable Energy As Drejningsmoment-ripple-reduktion for en generator og vindmølle indbefattende samme
CN110176781B (zh) * 2019-05-24 2023-04-28 上海电力学院 基于隔离型变频变压器的分频输电风力发电系统及方法
CN110542722B (zh) * 2019-08-27 2023-03-31 北京索瑞特医学技术有限公司 超声探头的故障检测方法及装置
CN110596547B (zh) * 2019-09-19 2021-08-24 上海电力大学 逆变器驱动电机的匝绝缘状态在线监测方法
CN113494428B (zh) * 2020-03-20 2022-11-22 新疆金风科技股份有限公司 风力发电机组的故障检测方法和装置
EP3922847A1 (fr) * 2020-06-11 2021-12-15 Ørsted Wind Power A/S Procédé et système de détection précoce de défauts dans un générateur d'éolienne
US11708815B2 (en) 2021-02-08 2023-07-25 General Electronic Company System and method for controlling a wind turbine
US11774324B2 (en) 2021-03-12 2023-10-03 General Electric Renovables Espana, S.L. System and method for detecting actual slip in a coupling of a rotary shaft
CN113189483B (zh) * 2021-04-25 2022-10-28 西安交通大学 一种转频谱峰与电流极差联合推断轴流风机故障诊断方法
US11913429B2 (en) 2021-04-29 2024-02-27 General Electric Renovables Espana, S.L. System and method for slip detection and surface health monitoring in a slip coupling of a rotary shaft

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EP2565658A1 (fr) * 2011-08-29 2013-03-06 General Electric Company Détection de défaut d'un générateur par l'analyse de la signature du courant
US20130325373A1 (en) * 2012-05-29 2013-12-05 Wei Qiao Detecting Faults in Wind Turbines
EP2851698A1 (fr) * 2013-09-18 2015-03-25 ABB Technology Ltd Procédé de détection d'une panne d'une machine électrique

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EP2541217A1 (fr) * 2011-06-29 2013-01-02 ABB Research Ltd. Procédé d'identification d'une panne d'une machine électrique
EP2565658A1 (fr) * 2011-08-29 2013-03-06 General Electric Company Détection de défaut d'un générateur par l'analyse de la signature du courant
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Also Published As

Publication number Publication date
ES2843746T3 (es) 2021-07-20
US20170153286A1 (en) 2017-06-01
DK3181900T3 (da) 2020-11-23
CN107037331B (zh) 2022-03-01
CN107037331A (zh) 2017-08-11
US10473708B2 (en) 2019-11-12
MX2016015500A (es) 2017-08-10
BR102016027752A2 (pt) 2017-05-30
ES2613902B1 (es) 2018-03-14
BR102016027752B1 (pt) 2023-02-14
ES2613902A1 (es) 2017-05-26
EP3181900B1 (fr) 2020-10-21

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